def bubble_sort (a):
    swapped = True
    while swapped:
        spapped = False
        for i in range(len(a) - 1):
            if a[i] > a [i+1]:
                a[i], a[i+1] = a[i+1], a[i]
                swapped = True
                
def read2list (filename):
    file = open(filename, 'r')
    data = file.readlines()
    return data

m1 = read2list ("m1_sorted.txt")
m2 = read2list ("m2_sorted.txt")
m3 = read2list ("m3_sorted.txt")

import time
t_start = time.time()
bubble_sort (m1)
t_finish = time.time()
print ("Time1: ", round((t_finish-t_start)*1000))
t_start = time.time()
bubble_sort (m2)
t_finish = time.time()
print ("Time2: ", round((t_finish-t_start)*1000))
t_start = time.time()
bubble_sort (m3)
t_finish = time.time()
print ("Time3: ", round((t_finish-t_start)*1000))
